* Denver Zoo, Colorado
* Honolulu Zoo, Havaj
* Jacksonville Zoo and Gardens, Florida
* Kansas City Zoo, Missouri
Louisville Zoo, Kentucky
* Memphis Zoo, Tennessee
* Milwaukee County Zoo, Wisconsin
* Minnesota Zoo, Minnesota
* Oklahoma City Zoo, Oklahoma
* Omaha's Henry Doorly Zoo and Aquarium, Nebraska
* Philadelphia Zoo, Pennsylvania
* Phoenix Zoo, Arizona
* Potter Park Zoo, Michigan
* Red River Zoo, Severní Dakota
* Sacramento Zoo, Kalifornie
* San Diego Zoo, Kalifornie
* San Francisco Zoo, Kalifornie
* Smithsonian's National Zoo, Washington, D.C.
* Zoo St. Louis, Missouri
* Tampa's Lowry Park Zoo, Florida
* Tulsa Zoo, Oklahoma
* Utah's Hogle Zoo, Utah
* Virginia Zoo, Virginie
* Woodland Park Zoo, Washington
* Zoo Atlanta, Georgia
* Zoo Nová Anglie (Franklin Park Zoo a Stone Zoo), Massachusetts